User's Guide

Chapter 8 Extended Data Lifecycle Management
About EDLM
Scalar i500 User’s Guide 206
• All of the EDLM scanning drives in the EDLM library managed
partition must be connected to a Fibre Channel I/O blade. Each FC
I/O blade supports up to four tape drives. You can use multiple FC
I/O blades to support the EDLM-scanning drives. It is recommended
(although not required) that the FC I/O blade(s) used for EDLM
scanning drives have only EDLM scanning drives attached, and
recommended that the blade not be connected to a host. Otherwise,
the host will have access to the EDLM drives. For this reason, we
strongly discourage using the same FC I/O blade for EDLM drives
and host-connected 4 Gb/s SNW drives. If this must be done, the
FC I/O blade must be “channel zoned” to prevent host access to the
EDLM scanning drives.
• Tape drives in the EDLM library managed partition will only be used
for EDLM scanning purposes.
• An EDLM library managed partition can be composed of a mix of
licensed and unlicensed slots. Unlicensed slots will be used first, but
if the size of a newly configured EDLM partition exceeds the number
of available unlicensed slots, then the empty licensed slots will be
used.
• Standard tape drive cleaning policies apply to the tape drives in the
EDLM library managed partition.
• You can set up EDLM scanning policies on the EDLM library
managed partition.
• If you plan to use the EDLM partition to scan tapes encrypted using
library managed encryption, you will need to configure this partition
for library managed encryption, so that it can request the correct
encryption keys from the encryption key servers. Without the proper
encryption keys, the EDLM scanning drives cannot perform normal
or full scans on encrypted tapes. Select Setup > Encryption >
Partition Configuration.
Note: When a partition is configured for Q-EKM, scan types of Normal and Full cannot be
selected.
• You cannot delete the last remaining EDLM partition if a standard
partition has EDLM policies enabled. To disable EDLM scanning
policies on a partition, select None for each of the following: Scan
upon import, Scan based on Tape Alert, and Use StorNext
configuration. In addition, set the normal and full scan time intervals
to zero. For more information, see Step 5: Setting Up Automatic
EDLM Scanning Policies on Partitions on page 216.